Edits to HallwayCollab

Project/Assets/ML-Agents/Examples/Hallway/Scenes/HallwayCollab.unity

       propertyPath: m_LocalEulerAnglesHint.z
       value: 0
       objectReference: {fileID: 0}
+    - target: {fileID: 3849025303538859997, guid: f3a451555dc514f46a69319857762eda,
+        type: 3}
+      propertyPath: m_BehaviorType
+      value: 0
+      objectReference: {fileID: 0}
     m_RemovedComponents: []
   m_SourcePrefab: {fileID: 100100000, guid: f3a451555dc514f46a69319857762eda, type: 3}
 --- !u!1001 &2143733088

Project/Assets/ML-Agents/Examples/Hallway/Scripts/HallwayCollabAgent.cs

     int m_Message = 0;
 
     [HideInInspector]
-    public float selection = 0;
+    public int selection = 0;
-        // Set initial message to random to avoid initialization issues
-        m_Message = Random.Range(0, 2);
+        m_Message = -1;
 
         var agentOffset = 15f;
         if (isSpotter)
         MoveAgent(actionBuffers.DiscreteActions);
         int comm_act = actionBuffers.DiscreteActions[1];
         teammate.tellAgent(comm_act);
+        // if (isSpotter) // Test
+        // {
+        //     teammate.tellAgent(selection);
+        // }
     }
 
     void OnCollisionEnter(Collision col)